ok. I have a 3 gallon bucket.

I put 2 1/2 gallons distilled in there with 3/4 teaspoon TOTAL of Micro, Grow, Bloom each since I wanted to avoid the burn problem again.

They don't seem to be curling or anything. However the top leaves are more yellow than green.

How long should it be before I see growth again?
What could be causing this yellowish color?

Is there a guide online about different kinds of plant deficiencies?